ASN AS16857 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS16857?

AS16857 is listed under Central Texas Telecommunications.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS16857 Central Texas Telecommunications

ASN Lookup Tool

Central Texas Telecommunications centexnet.com

US 26 Routes

AS Data

AS16857

AS16857 – Central Texas Telecommunications

AS Number	16857
AS Name	CENTEX
Organization	Central Texas Telecommunications(cttc-7)
Country	US
Website	centexnet.com
Number of IPv4 Routes	26
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2000-06-20

ASN Intelligence API for production workflows

Use ASN data for AS16857 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
209.55.64.0/24	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	256
66.208.105.0/24	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	256
66.208.96.0/24	AS16857	Central Texas Telecommunications	west central wireless	256
209.55.78.0/24	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	256
209.55.64.0/23	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	512
74.84.8.0/24	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	256
209.55.104.0/23	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	512
209.55.111.0/24	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	256
209.55.72.0/21	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	2048
69.7.82.0/24	AS16857	Central Texas Telecommunications	Central Texas Telecommunications	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       16857
ASName:         CENTEX
ASHandle:       AS16857
RegDate:        2000-06-20
Updated:        2019-09-04    
Ref:            https://rdap.arin.net/registry/autnum/16857


OrgName:        Central Texas Telecommunications
OrgId:          CTTC-7
Address:        PO Box 627
City:           Goldthwaite
StateProv:      TX
PostalCode:     76844
Country:        US
RegDate:        2019-08-12
Updated:        2026-01-27
Ref:            https://rdap.arin.net/registry/entity/CTTC-7


OrgNOCHandle: SYSTE112-ARIN
OrgNOCName:   System Administrator
OrgNOCPhone:  +1-325-938-5611 
OrgNOCEmail:  sysadmin@centex.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/SYSTE112-ARIN

OrgAbuseHandle: SYSTE112-ARIN
OrgAbuseName:   System Administrator
OrgAbusePhone:  +1-325-938-5611 
OrgAbuseEmail:  sysadmin@centex.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SYSTE112-ARIN

OrgNOCHandle: SC1235-ARIN
OrgNOCName:   Calder, Shawn 
OrgNOCPhone:  +1-325-938-5611 
OrgNOCEmail:  shawnc@centexnet.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SC1235-ARIN

OrgTechHandle: MWG4-ARIN
OrgTechName:   Garrison, Mitchell Wayne
OrgTechPhone:  +1-325-656-7000 
OrgTechEmail:  mitchg@centexnet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MWG4-ARIN

OrgTechHandle: SC1235-ARIN
OrgTechName:   Calder, Shawn 
OrgTechPhone:  +1-325-938-5611 
OrgTechEmail:  shawnc@centexnet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SC1235-ARIN

OrgTechHandle: SYSTE112-ARIN
OrgTechName:   System Administrator
OrgTechPhone:  +1-325-938-5611 
OrgTechEmail:  sysadmin@centex.net
OrgTechRef:    https://rdap.arin.net/registry/entity/SYSTE112-ARIN

OrgAbuseHandle: SC1235-ARIN
OrgAbuseName:   Calder, Shawn 
OrgAbusePhone:  +1-325-938-5611 
OrgAbuseEmail:  shawnc@centexnet.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SC1235-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS18618	west central wireless	US
AS1299	Arelion Sweden AB	SE
AS36658	Angelo State University	US
AS46849	TEXAS LONE STAR NETWORK, LLC	US
AS3356	Level 3 Parent, LLC	US
AS20058	Totelcom Communications, LLC	US
AS13876	FiberLight, LLC	US

Upstreams

AS Number	Description	Country
AS1299	Arelion Sweden AB	SE
AS46849	TEXAS LONE STAR NETWORK, LLC	US
AS3356	Level 3 Parent, LLC	US
AS20058	Totelcom Communications, LLC	US
AS13876	FiberLight, LLC	US

Downstreams

AS Number	Description	Country
AS36658	Angelo State University	US